opendaylight/md-sal/sal-clustering-commons/src/test/java/org/opendaylight/controller/cluster/datastore/node/utils/transformer/NormalizedNodePrunerTest.java

   1 /*
   2  * Copyright (c) 2015 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.controller.cluster.datastore.node.utils.transformer;
  10
  11 import static org.junit.Assert.assertEquals;
  12 import static org.junit.Assert.assertNull;
  13 import static org.junit.Assert.assertTrue;
  14 import static org.mockito.Mockito.mock;
  15 import static org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes.mapEntry;
  16 import static org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes.mapEntryBuilder;
  17 import static org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes.mapNodeBuilder;
  18 import com.google.common.collect.Sets;
  19 import java.io.IOException;
  20 import java.util.concurrent.atomic.AtomicInteger;
  21 import javax.xml.transform.dom.DOMSource;
  22 import org.junit.Assert;
  23 import org.junit.Before;
  24 import org.junit.Test;
  25 import org.mockito.MockitoAnnotations;
  26 import org.opendaylight.controller.cluster.datastore.node.utils.NormalizedNodeNavigator;
  27 import org.opendaylight.controller.cluster.datastore.node.utils.NormalizedNodeVisitor;
  28 import org.opendaylight.controller.cluster.datastore.util.TestModel;
  29 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  30 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.AugmentationIdentifier;
  31 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
  32 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeWithValue;
  33 import org.opendaylight.yangtools.yang.data.api.schema.AnyXmlNode;
  34 import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
  35 import org.opendaylight.yangtools.yang.data.api.schema.LeafSetEntryNode;
  36 import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
  37 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  38 import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeWriter;
  39 import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
  40 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
  41 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableLeafSetEntryNodeBuilder;
  42 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableLeafSetNodeBuilder;
  43 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  44
  45 public class NormalizedNodePrunerTest {
  46     private static final SchemaContext NO_TEST_SCHEMA = TestModel.createTestContextWithoutTestSchema();
  47     private static final SchemaContext NO_AUG_SCHEMA = TestModel.createTestContextWithoutAugmentationSchema();
  48     private static final SchemaContext FULL_SCHEMA = TestModel.createTestContext();
  49
  50     @Before
  51     public void setUp(){
  52         MockitoAnnotations.initMocks(this);
  53     }
  54
  55     private NormalizedNodePruner prunerFullSchema(YangInstanceIdentifier path) {
  56         return new NormalizedNodePruner(path, FULL_SCHEMA);
  57     }
  58
  59     private NormalizedNodePruner prunerNoAugSchema(YangInstanceIdentifier path) {
  60         return new NormalizedNodePruner(path, NO_AUG_SCHEMA);
  61     }
  62
  63     private NormalizedNodePruner prunerNoTestSchema(YangInstanceIdentifier path) {
  64         return new NormalizedNodePruner(path, NO_TEST_SCHEMA);
  65     }
  66
  67     @Test
  68     public void testNodesNotPrunedWhenSchemaPresent() throws IOException {
  69         NormalizedNodePruner pruner = prunerFullSchema(TestModel.TEST_PATH);
  70
  71         NormalizedNodeWriter normalizedNodeWriter = NormalizedNodeWriter.forStreamWriter(pruner);
  72
  73         NormalizedNode<?, ?> expected = createTestContainer();
  74
  75         normalizedNodeWriter.write(expected);
  76
  77         NormalizedNode<?, ?> actual = pruner.normalizedNode();
  78
  79         assertEquals(expected, actual);
  80
  81     }
  82
  83     @Test(expected = IllegalStateException.class)
  84     public void testReusePruner() throws IOException {
  85         NormalizedNodePruner pruner = prunerFullSchema(TestModel.TEST_PATH);
  86
  87         NormalizedNodeWriter normalizedNodeWriter = NormalizedNodeWriter.forStreamWriter(pruner);
  88
  89         NormalizedNode<?, ?> expected = createTestContainer();
  90
  91         normalizedNodeWriter.write(expected);
  92
  93         NormalizedNode<?, ?> actual = pruner.normalizedNode();
  94
  95         assertEquals(expected, actual);
  96
  97         NormalizedNodeWriter.forStreamWriter(pruner).write(expected);
  98
  99     }
 100
 101
 102     @Test
 103     public void testNodesPrunedWhenAugmentationSchemaMissing() throws IOException {
 104         NormalizedNodePruner pruner = prunerNoAugSchema(TestModel.TEST_PATH);
 105
 106         NormalizedNodeWriter normalizedNodeWriter = NormalizedNodeWriter.forStreamWriter(pruner);
 107
 108         NormalizedNode<?, ?> expected = createTestContainer();
 109
 110         normalizedNodeWriter.write(expected);
 111
 112         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 113
 114         Assert.assertNotEquals(expected, actual);
 115
 116         // Asserting true here instead of checking actual value because I don't want this assertion to be fragile
 117         assertTrue(countNodes(expected, "store:aug") > 0);
 118
 119         // All nodes from the augmentation module are gone from the resulting node
 120         assertEquals(0, countNodes(actual, "store:aug"));
 121     }
 122
 123     @Test
 124     public void testNodesPrunedWhenTestSchemaMissing() throws IOException {
 125         NormalizedNodePruner pruner = prunerNoTestSchema(TestModel.TEST_PATH);
 126
 127         NormalizedNodeWriter normalizedNodeWriter = NormalizedNodeWriter.forStreamWriter(pruner);
 128
 129         NormalizedNode<?, ?> expected = createTestContainer();
 130
 131         normalizedNodeWriter.write(expected);
 132
 133         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 134
 135         // Since top level schema is missing null is returned
 136         assertNull(actual);
 137
 138         // Asserting true here instead of checking actual value because I don't want this assertion to be fragile
 139         assertTrue(countNodes(expected, "urn:opendaylight:params:xml:ns:yang:controller:md:sal:dom:store:test") > 0);
 140
 141     }
 142
 143     private static int countNodes(NormalizedNode<?,?> normalizedNode, final String namespaceFilter){
 144         if(normalizedNode == null){
 145             return 0;
 146         }
 147         final AtomicInteger count = new AtomicInteger();
 148         new NormalizedNodeNavigator(new NormalizedNodeVisitor() {
 149
 150             @Override
 151             public void visitNode(int level, String parentPath, NormalizedNode<?, ?> normalizedNode) {
 152                 if(!(normalizedNode.getIdentifier() instanceof AugmentationIdentifier)) {
 153                     if (normalizedNode.getIdentifier().getNodeType().getNamespace().toString().contains(namespaceFilter)) {
 154                         count.incrementAndGet();
 155                     }
 156                 }
 157             }
 158         }).navigate(YangInstanceIdentifier.EMPTY.toString(), normalizedNode);
 159
 160         return count.get();
 161     }
 162
 163     @Test
 164     public void testLeafNodeNotPrunedWhenHasNoParent() throws IOException {
 165         NormalizedNodePruner pruner = prunerFullSchema(TestModel.TEST_PATH.node(TestModel.DESC_QNAME));
 166         NormalizedNode<?, ?> input = Builders.leafBuilder().withNodeIdentifier(
 167                 new NodeIdentifier(TestModel.DESC_QNAME)).withValue("test").build();
 168         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 169
 170         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 171         assertEquals("normalizedNode", input, actual);
 172     }
 173
 174     @Test
 175     public void testLeafNodePrunedWhenHasAugmentationParentAndSchemaMissing() throws IOException {
 176         AugmentationIdentifier augId = new AugmentationIdentifier(Sets.newHashSet(TestModel.AUG_CONT_QNAME));
 177         NormalizedNodePruner pruner = prunerFullSchema(YangInstanceIdentifier.builder().
 178                 node(TestModel.TEST_QNAME).node(TestModel.AUGMENTED_LIST_QNAME).
 179                         node(TestModel.AUGMENTED_LIST_QNAME).node(augId).build());
 180         LeafNode<Object> child = Builders.leafBuilder().withNodeIdentifier(
 181                 new NodeIdentifier(TestModel.INVALID_QNAME)).withValue("test").build();
 182         NormalizedNode<?, ?> input = Builders.augmentationBuilder().withNodeIdentifier(augId).withChild(child).build();
 183         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 184
 185         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 186         assertEquals("normalizedNode", Builders.augmentationBuilder().withNodeIdentifier(augId).build(), actual);
 187     }
 188
 189     @Test
 190     public void testLeafNodePrunedWhenHasNoParentAndSchemaMissing() throws IOException {
 191         NormalizedNodePruner pruner = prunerFullSchema(TestModel.TEST_PATH.node(TestModel.INVALID_QNAME));
 192         NormalizedNode<?, ?> input = Builders.leafBuilder().withNodeIdentifier(
 193                 new NodeIdentifier(TestModel.INVALID_QNAME)).withValue("test").build();
 194         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 195
 196         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 197         assertNull(actual);
 198     }
 199
 200
 201     @Test
 202     public void testLeafSetEntryNodeNotPrunedWhenHasNoParent() throws IOException {
 203         NormalizedNodePruner pruner = prunerFullSchema(TestModel.TEST_PATH.node(TestModel.SHOE_QNAME));
 204         NormalizedNode<?, ?> input = Builders.leafSetEntryBuilder().withValue("puma").withNodeIdentifier(
 205                 new NodeWithValue<>(TestModel.SHOE_QNAME, "puma")).build();
 206         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 207
 208         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 209         assertEquals("normalizedNode", input, actual);
 210     }
 211
 212     @Test
 213     public void testLeafSetEntryNodeNotPrunedWhenHasParent() throws IOException {
 214         NormalizedNodePruner pruner = prunerFullSchema(TestModel.TEST_PATH.node(TestModel.SHOE_QNAME));
 215         LeafSetEntryNode<Object> child = Builders.leafSetEntryBuilder().withValue("puma").withNodeIdentifier(
 216                 new NodeWithValue<>(TestModel.SHOE_QNAME, "puma")).build();
 217         NormalizedNode<?, ?> input = Builders.leafSetBuilder().withNodeIdentifier(
 218                 new NodeIdentifier(TestModel.SHOE_QNAME)).withChild(child).build();
 219         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 220
 221         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 222         assertEquals("normalizedNode", input, actual);
 223     }
 224
 225     @Test
 226     public void testLeafSetEntryNodePrunedWhenHasNoParentAndSchemaMissing() throws IOException {
 227         NormalizedNodePruner pruner = prunerFullSchema(TestModel.TEST_PATH.node(TestModel.INVALID_QNAME));
 228         NormalizedNode<?, ?> input = Builders.leafSetEntryBuilder().withValue("test").withNodeIdentifier(
 229                 new NodeWithValue<>(TestModel.INVALID_QNAME, "test")).build();
 230         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 231
 232         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 233         assertNull(actual);
 234     }
 235
 236     @Test
 237     public void testLeafSetEntryNodePrunedWhenHasParentAndSchemaMissing() throws IOException {
 238         NormalizedNodePruner pruner = prunerFullSchema(TestModel.TEST_PATH.node(TestModel.INVALID_QNAME));
 239         LeafSetEntryNode<Object> child = Builders.leafSetEntryBuilder().withValue("test").withNodeIdentifier(
 240                 new NodeWithValue<>(TestModel.INVALID_QNAME, "test")).build();
 241         NormalizedNode<?, ?> input = Builders.leafSetBuilder().withNodeIdentifier(
 242                 new NodeIdentifier(TestModel.INVALID_QNAME)).withChild(child).build();
 243         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 244
 245         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 246         assertNull(actual);
 247     }
 248
 249     @Test
 250     public void testAnyXMLNodeNotPrunedWhenHasNoParent() throws IOException {
 251         NormalizedNodePruner pruner = prunerFullSchema(TestModel.TEST_PATH.node(TestModel.ANY_XML_QNAME));
 252         NormalizedNode<?, ?> input = Builders.anyXmlBuilder().withNodeIdentifier(
 253                 new NodeIdentifier(TestModel.ANY_XML_QNAME)).withValue(mock(DOMSource.class)).build();
 254         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 255
 256         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 257         assertEquals("normalizedNode", input, actual);
 258     }
 259
 260
 261     @Test
 262     public void testAnyXMLNodeNotPrunedWhenHasParent() throws IOException {
 263         NormalizedNodePruner pruner = prunerFullSchema(TestModel.TEST_PATH);
 264         AnyXmlNode child = Builders.anyXmlBuilder().withNodeIdentifier(
 265                 new NodeIdentifier(TestModel.ANY_XML_QNAME)).withValue(mock(DOMSource.class)).build();
 266         NormalizedNode<?, ?> input = Builders.containerBuilder().withNodeIdentifier(
 267                 new NodeIdentifier(TestModel.TEST_QNAME)).withChild(child).build();
 268         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 269
 270         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 271         assertEquals("normalizedNode", input, actual);
 272     }
 273
 274     @Test
 275     public void testAnyXmlNodePrunedWhenHasNoParentAndSchemaMissing() throws IOException {
 276         NormalizedNodePruner pruner = prunerNoTestSchema(TestModel.TEST_PATH.node(TestModel.ANY_XML_QNAME));
 277         NormalizedNode<?, ?> input = Builders.anyXmlBuilder().withNodeIdentifier(
 278                 new NodeIdentifier(TestModel.ANY_XML_QNAME)).withValue(mock(DOMSource.class)).build();
 279         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 280
 281         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 282         assertNull(actual);
 283     }
 284
 285     @Test
 286     public void testInnerContainerNodeWithFullPathPathNotPruned() throws IOException {
 287         YangInstanceIdentifier path = YangInstanceIdentifier.builder().node(TestModel.TEST_QNAME).
 288                 node(TestModel.OUTER_LIST_QNAME).nodeWithKey(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1).
 289                     node(TestModel.INNER_LIST_QNAME).nodeWithKey(TestModel.INNER_LIST_QNAME, TestModel.NAME_QNAME, "one").
 290                         node(TestModel.INNER_CONTAINER_QNAME).build();
 291         NormalizedNodePruner pruner = prunerFullSchema(path);
 292
 293         NormalizedNode<?, ?> input = ImmutableNodes.containerNode(TestModel.INNER_CONTAINER_QNAME);
 294         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 295
 296         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 297         assertEquals("normalizedNode", input, actual);
 298     }
 299
 300     @Test
 301     public void testInnerContainerNodeWithFullPathPrunedWhenSchemaMissing() throws IOException {
 302         YangInstanceIdentifier path = YangInstanceIdentifier.builder().node(TestModel.TEST_QNAME).
 303                 node(TestModel.OUTER_LIST_QNAME).nodeWithKey(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1).
 304                     node(TestModel.INNER_LIST_QNAME).nodeWithKey(TestModel.INNER_LIST_QNAME, TestModel.NAME_QNAME, "one").
 305                         node(TestModel.INVALID_QNAME).build();
 306         NormalizedNodePruner pruner = prunerFullSchema(path);
 307
 308         NormalizedNode<?, ?> input = ImmutableNodes.containerNode(TestModel.INVALID_QNAME);
 309         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 310
 311         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 312         assertNull(actual);
 313     }
 314
 315     @Test
 316     public void testInnerContainerNodeWithParentPathPrunedWhenSchemaMissing() throws IOException {
 317         YangInstanceIdentifier path = YangInstanceIdentifier.builder().node(TestModel.TEST_QNAME).
 318                 node(TestModel.OUTER_LIST_QNAME).nodeWithKey(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1).build();
 319         NormalizedNodePruner pruner = prunerFullSchema(path);
 320
 321         MapNode innerList = mapNodeBuilder(TestModel.INNER_LIST_QNAME).withChild(mapEntryBuilder(
 322                 TestModel.INNER_LIST_QNAME, TestModel.NAME_QNAME, "one").withChild(
 323                         ImmutableNodes.containerNode(TestModel.INVALID_QNAME)).build()).build();
 324         NormalizedNode<?, ?> input = mapEntryBuilder(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1).
 325                 withChild(innerList).build();
 326         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 327
 328         NormalizedNode<?, ?> expected = mapEntryBuilder(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1).
 329                 withChild(mapNodeBuilder(TestModel.INNER_LIST_QNAME).withChild(mapEntryBuilder(
 330                 TestModel.INNER_LIST_QNAME, TestModel.NAME_QNAME, "one").build()).build()).build();
 331         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 332         assertEquals("normalizedNode", expected, actual);
 333     }
 334
 335     @Test
 336     public void testInnerListNodeWithFullPathNotPruned() throws IOException {
 337         YangInstanceIdentifier path = YangInstanceIdentifier.builder().node(TestModel.TEST_QNAME).
 338                 node(TestModel.OUTER_LIST_QNAME).nodeWithKey(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1).
 339                     node(TestModel.INNER_LIST_QNAME).build();
 340         NormalizedNodePruner pruner = prunerFullSchema(path);
 341
 342         MapNode input = mapNodeBuilder(TestModel.INNER_LIST_QNAME).withChild(mapEntryBuilder(
 343                 TestModel.INNER_LIST_QNAME, TestModel.NAME_QNAME, "one").withChild(
 344                         ImmutableNodes.containerNode(TestModel.INNER_CONTAINER_QNAME)).build()).build();
 345         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 346
 347         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 348         assertEquals("normalizedNode", input, actual);
 349     }
 350
 351     @Test
 352     public void testInnerListNodeWithFullPathPrunedWhenSchemaMissing() throws IOException {
 353         YangInstanceIdentifier path = YangInstanceIdentifier.builder().node(TestModel.TEST_QNAME).
 354                 node(TestModel.OUTER_LIST_QNAME).nodeWithKey(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1).
 355                     node(TestModel.INVALID_QNAME).build();
 356         NormalizedNodePruner pruner = prunerFullSchema(path);
 357
 358         MapNode input = mapNodeBuilder(TestModel.INVALID_QNAME).withChild(mapEntryBuilder(
 359                 TestModel.INVALID_QNAME, TestModel.NAME_QNAME, "one").withChild(
 360                         ImmutableNodes.containerNode(TestModel.INNER_CONTAINER_QNAME)).build()).build();
 361         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 362
 363         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 364         assertNull(actual);
 365     }
 366
 367     @Test
 368     public void testInnerListNodeWithParentPathPrunedWhenSchemaMissing() throws IOException {
 369         YangInstanceIdentifier path = YangInstanceIdentifier.builder().node(TestModel.TEST_QNAME).
 370                 node(TestModel.OUTER_LIST_QNAME).nodeWithKey(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1).build();
 371         NormalizedNodePruner pruner = prunerFullSchema(path);
 372
 373         MapNode innerList = mapNodeBuilder(TestModel.INVALID_QNAME).withChild(mapEntryBuilder(
 374                 TestModel.INVALID_QNAME, TestModel.NAME_QNAME, "one").withChild(
 375                         ImmutableNodes.containerNode(TestModel.INNER_CONTAINER_QNAME)).build()).build();
 376         NormalizedNode<?, ?> input = mapEntryBuilder(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1).
 377                 withChild(innerList).build();
 378         NormalizedNodeWriter.forStreamWriter(pruner).write(input);
 379
 380         NormalizedNode<?, ?> expected = mapEntry(TestModel.OUTER_LIST_QNAME, TestModel.ID_QNAME, 1);
 381         NormalizedNode<?, ?> actual = pruner.normalizedNode();
 382         assertEquals("normalizedNode", expected, actual);
 383     }
 384
 385     private static NormalizedNode<?, ?> createTestContainer() {
 386         byte[] bytes1 = {1,2,3};
 387         LeafSetEntryNode<Object> entry1 = ImmutableLeafSetEntryNodeBuilder.create().withNodeIdentifier(
 388                 new NodeWithValue<>(TestModel.BINARY_LEAF_LIST_QNAME, bytes1)).
 389                 withValue(bytes1).build();
 390
 391         byte[] bytes2 = {};
 392         LeafSetEntryNode<Object> entry2 = ImmutableLeafSetEntryNodeBuilder.create().withNodeIdentifier(
 393                 new NodeWithValue<>(TestModel.BINARY_LEAF_LIST_QNAME, bytes2)).
 394                 withValue(bytes2).build();
 395
 396         LeafSetEntryNode<Object> entry3 = ImmutableLeafSetEntryNodeBuilder.create().withNodeIdentifier(
 397                 new NodeWithValue<>(TestModel.BINARY_LEAF_LIST_QNAME, null)).withValue(null).build();
 398
 399
 400         return TestModel.createBaseTestContainerBuilder().
 401                 withChild(ImmutableLeafSetNodeBuilder.create().withNodeIdentifier(
 402                         new NodeIdentifier(TestModel.BINARY_LEAF_LIST_QNAME)).
 403                         withChild(entry1).withChild(entry2).withChild(entry3).build()).
 404                 withChild(ImmutableNodes.leafNode(TestModel.SOME_BINARY_DATA_QNAME, new byte[]{1, 2, 3, 4})).
 405                 build();
 406     }
 407 }